Definify.com
Webster 1828 Edition
Crotch
CROTCH
,Noun.
1.
A fork or forking; the parting of two legs or branches; as the crotch of a tree.2.
In ships, a crooked timber placed on the keel, in the fore and aft parts of a ship.3.
A piece of wood or iron, opening on the top and extending two horns or arms, like a half moon, used for supporting a boom, a spare topmast, yards, &c.